You only need to place the wire in between the jaws and close. The round jaw will push the wire in the concave resulting in a good 50 % circle loop. Concave pliers are superior for wire wrapping jewellery craft. Start off with the proper tools with the occupation therefore https://remingtonbcbyv.tdlwiki.com/1072085/new_step_by_step_map_for_pliers_for_custom_designs